This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This massive library holds what was once the largest book collection in the world.

Notorious artist squat renovated into legal studios.

Abandoned railway line circling the city of Paris.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

Given just one more year to live, Conrad Schuck built his dream house in Bartow, Florida.

Florida castle built with aluminum printing plates.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

An octet of classic chrome trailers speared into the ground act as a tribute to the silver bullets of the open road.

A gleaming white tower in ornate Indian style soars above the low-slung bungalows of north Tampa.

This home is decked out like a psychedelic explosion of colors and bowling balls.

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

An oddities shop that dabbles in the deathly and beautiful.

These former theme park figures have a new lease on life outside a water plant-turned-restaurant.

The strip club's VIP lounge is actually a rare repurposed Futuro House.